lst=[
    ["01",'电风扇','美的',500],
    ['02','洗衣机','TCL',1000],
    ['03','电风扇','老板',400]
]
for item in lst:
    for i in item:
        print(i,end="\t")
    print()

#格式化
for item in lst:
        item[0]="0000"+item[0]
        item[3]="＄{0:.2f}".format(item[3]) #这里要注意有f出现则这里要是一个数值才能有用不能是字符
for item in lst:
    for i in item:
        print(i,end="\t")
    print()
